What is the origin of the idiom "senior moment" and when to use it?

The idiom "senior moment" is a relatively recent colloquial expression that emerged in the late 20th century. It humorously refers to a lapse in memory or a mental lapse experienced by older individuals, often attributed to the aging process.This expression is used informally to describe a temporary forgetfulness, mental lapse, or momentary confusion, typically associated with aging.